Book Image

Mastering Go – Third Edition - Third Edition

By : Mihalis Tsoukalos
5 (2)
Book Image

Mastering Go – Third Edition - Third Edition

5 (2)
By: Mihalis Tsoukalos

Overview of this book

Mastering Go is the essential guide to putting Go to work on real production systems. This freshly updated third edition includes topics like creating RESTful servers and clients, understanding Go generics, and developing gRPC servers and clients. Mastering Go was written for programmers who want to explore the capabilities of Go in practice. As you work your way through the chapters, you’ll gain confidence and a deep understanding of advanced Go concepts, including concurrency and the operation of the Go Garbage Collector, using Go with Docker, writing powerful command-line utilities, working with JavaScript Object Notation (JSON) data, and interacting with databases. You’ll also improve your understanding of Go internals to optimize Go code and use data types and data structures in new and unexpected ways. This essential Go programming book will also take you through the nuances and idioms of Go with exercises and resources to fully embed your newly acquired knowledge. With the help of Mastering Go, you’ll become an expert Go programmer by building Go systems and implementing advanced Go techniques in your projects.
Table of Contents (17 chapters)
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Building Web Services

The core subject of this chapter is working with HTTP using the net/http package—remember that all web services require a web server in order to operate. Additionally, in this chapter, we are going to convert the phone book application into a web application that accepts HTTP connections and create a command-line client to work with it. Lastly, we'll illustrate how to create an FTP (File Transfer Protocol) server and how to export metrics from Go applications to Prometheus and work with the runtime/metrics package to get implementation-defined metrics exported by the Go runtime.

In more detail, this chapter covers:

  • The net/http package
  • Creating a web server
  • Updating the phone book application
  • Exposing metrics to Prometheus
  • Developing web clients
  • Creating a client for the phone book service
  • Creating file servers
  • Timing out HTTP connections